(pick robot1 ball2 room2 lgripper1)
(move robot1 room2 room1)
(drop robot1 ball2 room1 lgripper1)
(pick robot1 ball4 room1 lgripper1)
(move robot1 room1 room2)
(drop robot1 ball4 room2 lgripper1)
(pick robot1 ball5 room2 lgripper1)
(move robot1 room2 room3)
(drop robot1 ball5 room3 lgripper1)
; cost = 9 (unit cost)
